If you log into your account on NP's site, click on 'My Account' then select "Recent/Unshipped Orders" from the dropdown. You should see the status of your order.
Also, they will email you whenever the status changes. So when it changes from "Pending" to "Processing" you will be emailed and also when it changes from "Processing" to "Shipped". Once it's shipped you can track it with a tracking number they provide.